That is not a problem with the word but the thing. It does not matter what opposition to bad skepticism is called. If it exists as a definite idea, it will acquire a name, and whatever name it is called by will be used in that way.

"New rationalism" is even worse: the name suggests not that there is such a thing as bad reasoning, but that reasoning is bad.

Perhaps a better idea would be to not call it anything, nor make of it a thing. Instead, someone dissatisfied with how it is being done on LW might more fruitfully devote their energies to demonstrating how to do it better.